Roskilde

Roskilde was Denmark’s capital for nearly five hundred years, and the weight of that history is concentrated in two sites. The cathedral — Scandinavia’s first Gothic brick church, a UNESCO World Heritage Site — holds the tombs of thirty-nine Danish kings and queens, their chapels growing outward like geological layers of royal ambition. The building alone justifies the train ride from Copenhagen.

The Viking Ship Museum sits on the fjord’s edge, built around five eleventh-century ships recovered from the water where they were deliberately sunk to block a naval attack. You can watch craftspeople building Viking-era boats using original techniques, and in summer, sail in a reconstructed vessel across the fjord. The combination of the cathedral and the ships gives Roskilde a density of Danish history that no other town matches.

When to go: May through September for the Viking Ship Museum’s outdoor activities and fjord sailing. The Roskilde Festival in late June is Northern Europe’s largest music festival. The cathedral is magnificent in any season. A day trip from Copenhagen works perfectly.